net/mlx5: E-Switch, Improve error messages in term table creation

Add error code to the error messages and removed duplicated message:
if termination table creation failed, we already get an error message
in mlx5_eswitch_termtbl_create, so no need for the additional error print
in the calling function.
Signed-off-by: Yevgeny Kliteynik <kliteyn@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>

drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads_termtbl.c

@@ -83,14 +83,16 @@ mlx5_eswitch_termtbl_create(struct mlx5_core_dev *dev,
 	ft_attr.autogroup.max_num_groups = 1;
 	tt->termtbl = mlx5_create_auto_grouped_flow_table(root_ns, &ft_attr);
 	if (IS_ERR(tt->termtbl)) {
-		esw_warn(dev, "Failed to create termination table\n");
+		esw_warn(dev, "Failed to create termination table (error %d)\n",
+			 IS_ERR(tt->termtbl));
 		return -EOPNOTSUPP;
 	}
 
 	tt->rule = mlx5_add_flow_rules(tt->termtbl, NULL, flow_act,
 				       &tt->dest, 1);
 	if (IS_ERR(tt->rule)) {
-		esw_warn(dev, "Failed to create termination table rule\n");
+		esw_warn(dev, "Failed to create termination table rule (error %d)\n",
+			 IS_ERR(tt->rule));
 		goto add_flow_err;
 	}
 	return 0;
@@ -140,10 +142,9 @@ mlx5_eswitch_termtbl_get_create(struct mlx5_eswitch *esw,
 	memcpy(&tt->flow_act, flow_act, sizeof(*flow_act));
 
 	err = mlx5_eswitch_termtbl_create(esw->dev, tt, flow_act);
-	if (err) {
-		esw_warn(esw->dev, "Failed to create termination table\n");
+	if (err)
 		goto tt_create_err;
-	}
+
 	hash_add(esw->offloads.termtbl_tbl, &tt->termtbl_hlist, hash_key);
 tt_add_ref:
 	tt->ref_count++;
@@ -282,7 +283,8 @@ mlx5_eswitch_add_termtbl_rule(struct mlx5_eswitch *esw,
 		tt = mlx5_eswitch_termtbl_get_create(esw, &term_tbl_act,
 						     &dest[i], attr);
 		if (IS_ERR(tt)) {
-			esw_warn(esw->dev, "Failed to create termination table\n");
+			esw_warn(esw->dev, "Failed to get termination table (error %d)\n",
+				 IS_ERR(tt));
 			goto revert_changes;
 		}
 		attr->dests[num_vport_dests].termtbl = tt;